PORTRA ENDURA Paper and SUPRA ENDURA Paper TECHNICAL DATA / COLOR PAPER PORTRA ENDURA Paper and SUPRA ENDURA Paper are fast, resin-coated multilayer papers for making color prints from color negatives or internegatives. They can be exposed both digitally and optically. They are designed for all types of equipment from digital (CRT, LED, and laser) exposing devices to optical enlargers and automatic printers. PORTRA ENDURA Paper is a low contrast paper, making it an ideal choice for portrait, studio, and wedding photography, as well as location portraiture. SUPRA ENDURA Paper features slightly higher contrast and color saturation, making it an excellent choice for portrait, candid, event, high-key, and commercial applications. The new papers can easily be distinguished from PORTRA III and SUPRA III Papers by their unique watermark on the back. PORTRA ENDURA Paper has a single grey dot under PAPER, whereas PORTRA III has two dots separating PAPER, PAPIER, and PAPEL. Likewise, SUPRA ENDURA Paper has a single grey dot under PAPER, whereas SUPRA III has two dots separating PAPER, PAPIER, and PAPEL. Both are available in sheets and rolls in E (fine lustre), F (glossy), and N (matt) surfaces. Use EKTACOLOR Chemicals for Process RA-4 to process these papers. FEATURES New emulsion technology for digital and optical performance Proprietary dual layer coupler blending technology for excellent image quality BENEFITS Same imaging dyes in digital and optical printers yields consistent image quality and appearance throughout the lab Excellent latent image keeping from 5 seconds to 24 hours means improved consistency, especially in digital devices Excellent print quality in both high quality and high productivity modes of bi-directional printers Excellent flesh reproduction Softer, smoother flesh reproduction from highlights to shadows Excellent color accuracy Improved color saturation Brighter blues, cyan, purples and reds FEATURES State-of-the-art image stability Proprietary high intensity reciprocity characteristics More robust processing capability Reduced developer replenishment rates 50% less calcium Improved raw stock color proprietary technology Reduced sensitometric variability September 2008 E-4021 BENEFITS Improved light stability Over 100 years before noticeable fading in typical home display Significantly improved dark stability Over 200 years before noticeable fading in the most common home storage conditions Superior performance in professional applications creating new standards for image permanence Exposure range of 32 stops from 50 nanoseconds to 10 minutes Can be used for all exposing devices, from optical enlargers and automatic printers to digital (CRT, LED, and Laser) exposing devices Broad print engine applicability for CRT, LED, and laser devices Optimized text and fringing characteristics in all digital devices Simplified inventory (easy ordering, stocking, handling) One paper for all offers flexibility in the lab Less sensitive to process chemical activity variations Reduced sensitivity to process fluctuations caused by: Image density content (low key/highkey) Inadvertent low level of bleach-fix contamination Utilization changes Product mix More complete paper development for improved consistency Lower process RA-4 processing costs Lower environmental impact Significantly reduced propensity for calcium buildup Reduced maintenance and cleaner running paper processors Lighter, more neutral raw stock color for easier dodging and burning Easier printer setup and focus Reduced speed variability means more consistent quality within an emulsion blend Eastman Kodak Company, 2008
STORAGE AND HANDLING Store unprocessed paper between 40 and 75 F (4 and 24 C) in the original sealed package. High temperatures or high humidity may produce unwanted print quality changes. To avoid moisture condensation on unexposed paper that has been refrigerated, allow the paper to warm up to room temperature before opening the package. For best results, remove the paper from cold storage the day before you use it, or allow the paper to warm up for the appropriate time from the following table: Size Warm-Up Times (Hours) to Reach Room Temperature of 21 C (70 F) -18 C (0 F) From a Storage Temperature of 2 C (35 F) 13 C (55 F) 8 x 10-inch (100-sheet box) 4 hours 3 hours 2 hours 16 x 20-inch (50-sheet box) 3 hours 2 hours 2 hours 20 x 24-inch (50-sheet box) 3 hours 2 hours 2 hours 3 1/2-inch x 775-foot roll 8 hours 6 hours 4 hours 8-inch x 575-foot roll 10 hours 7 hours 4 hours 20-inch x 50-foot roll 6 hours 5 hours 3 hours 30-inch x 100-foot roll 8 hours 6 hours 4 hours 40-inch x 100-foot roll 9 hours 7 hours 5 hours Handle the paper carefully by the edges. The paper is packaged with the emulsion side of all sheets facing in the same direction. For complete light and moisture protection, use the inner bag and the two-part cardboard box to store the paper. DARKROOM RECOMMENDATIONS Handle unprocessed paper in total darkness. Be sure that your darkroom is lighttight. Eliminate stray light from enlarger heads, timers, LEDs, etc. Note: Using a safelight will affect your results. If absolutely necessary, you can use a safelight equipped with a 13 Safelight Filter (amber) with a 7 1/2-watt bulb. Keep the safelight at least 1.2 metres (4 feet) from the paper. Keep safelight exposure as short as possible. Run tests to determine that safelight use gives acceptable results for your application. EXPOSURE Digital Printing You can expose PORTRA ENDURA Paper and SUPRA ENDURA Paper with many types of digital printers. They perform well with the following Kodak digital printers: LED Color Printer LED II Printer 20P/20R Digital Multiprinter Digital Multiprinter II LF CRT Color Printer RP 30 Laser Printer RR 30 Laser Printer SRP 30 Laser Printer RP 50 LED Printer For up-to-date starting values for Kodak digital printers and other manufacturers equipment, refer to the following documents (available at www.kodak.com/go/endura): Digital Printer Aims for PORTRA ENDURA Paper, CIS-234 Digital Printer Aims for SUPRA ENDURA Paper, CIS-235 Optical Printing Expose PORTRA ENDURA Paper and SUPRA ENDURA Paper in automatic printers or enlargers equipped with tungsten or tungsten-halogen light sources or photo enlarger lamps. Set up and balance the printer or enlarger according to the manufacturer s instructions. Do not use fluorescent lamps to expose this paper. Use a heat-absorbing glass to remove infrared radiation. Because voltage changes affect light output and color quality, use a voltage regulator. Keep negatives and the equipment optical system clean. Mask negatives to eliminate stray light. You can use the white-light or tricolor exposure method. Printer Setup Initial conversion to these papers involves the rebalance of your printers. Since the green speed is about 1 2 stop faster than PORTRA III and SUPRA III Papers, increase your magenta filtration by approximately 15CC. Also, update your printers by running your normal and slope printer control negatives to adjust printer slope. (See "Printer Control Tools.") This will optimize the print quality due to the improved reciprocity of these papers. 2 PORTRA ENDURA Paper and SUPRA ENDURA Paper E-4021
White-Light Exposure Method Control color balance with dichroic filters built into the printer or enlarger, or with Color Printing (CP) Filters (Acetate) placed between the lamp and the negative. You can use any number of filters between the light source and the negative. If you use cyan filtration, use filters with the suffix -2, (e.g. CP10C-2 ). 1. Start with a filter pack of 65M + 55Y to make a test print. 2. Evaluate the test print under the appropriate lighting. (See Illumination for Evaluation of Prints. ) 3. Judge print density first. If necessary, make another print by adjusting the exposure as recommended in the following table. If your print is TOO LIGHT TOO DARK 4. Then judge the color balance. If your print is CYAN MAGENTA YELLOW Do this OR Do this Open the lens aperture to increase the light level Close the lens aperture to decrease the light level Subtract these filters Magenta + Yellow (Red) Cyan + Yellow (Green) Magenta + Cyan (Blue) Increase the exposure time Decrease the exposure time 5. Remove neutral density from your filter pack. For example, if you determine that a filter pack of 40R + 10Y + 10C will give you a pleasing print: a. Convert any primary filters (R, G, B) to their subtractive equivalents (C, M, Y): 40R = 40M + 40Y. b. Add filters of the same color: 10Y + 40Y = 50Y. c. If the new filter pack has all three subtractive colors, cancel the neutral density by subtracting the smallest density value from all three densities: OR Add these filters Cyan Magenta Yellow RED Cyan Magenta + Yellow GREEN Magenta Cyan + Yellow BLUE Yellow Cyan + Magenta 10C 40M 50Y -10-10 -10 30M 40Y = filtration without neutral density 6. Adjust the exposure for the new filter pack. An exposure time that produced a print of satisfactory density may not produce an acceptable density when you change the filter pack. The following table gives filter factors for calculating exposure adjustments when you use Color Printing (CP) Filters. Filter Factors for CP Filters Filter Factor Filter Factor 05Y 10Y 20Y 30Y 40Y 50Y 05M 10M 20M 30M 40M 50M 05C 10C 20C 30C 40C 50C 1.2 1.7 1.9 2.1 1.2 1.4 1.6 05R 10R 20R 30R 40R 50R 05G 10G 20G 30G 40G 50G 05B 10B 20B 30B 40B 50B 1.2 1.7 1.9 2.2 1.2 1.4 1.7 1.6 2.4 2.9 To use the factors, divide the old exposure time by the factor for any filter you remove. If you add a filter, multiply the time by the factor. If you add or remove two or more filters, multiply the individual factors and use the result as your factor. You may need to modify these factors for your equipment. Note: The filter factors listed in the table take into account the effects of filter surfaces. When you adjust the filtration in equipment that has built-in dichroic filters, any noticeable differences in density are due to differences in the color density of the print. For example, you have a print with acceptable density, but a magenta balance. When you add magenta filtration to correct the color balance, the print will become too light, so you must use a longer exposure time. A rule of thumb for magenta dichroic filtration is to change the exposure time by one percent for every unit of change in filtration. For example, if you increase the magenta filtration by 20M, increase the exposure time by 20 percent. Changes in yellow dichroic filtration do not usually affect the apparent print density. If you use cyan dichroic filtration, use the filter factors in the table above as starting points for adjusting exposure. PORTRA ENDURA Paper and SUPRA ENDURA Paper E-4021 3
Tricolor Exposure Method Use WRATTEN Gelatin Filters No. 25 (red), No. 99 (green), and No. 47B (blue) to give the paper three separate exposures. Do not move the paper or the enlarger until you have made all three exposures. Typical exposure times for making an enlargement from a normally exposed negative are given in the table below. Filter Red Green Blue Times for an Aperture Setting of f/8 * (8x Enlargement of a PORTRA Film Negative) 2.2 seconds 2.3 seconds 3.5 seconds * For an enlarger equipped with a Photo Enlarger Lamp No. 212 or No. 302; the setting may vary with other types of lamps. Evaluate the test print under the appropriate lighting. (See Illumination for Evaluation of Prints. ) Judge the print density first. If necessary, make another print by adjusting the exposure as recommended in the table below. If your print is TOO LIGHT TOO DARK Then judge color balance. Do this OR Do this Open the lens aperture to increase the light level Close the lens aperture to decrease the light level Increase all exposure times proportionally Decrease all exposure times proportionally If your print is Subtract these filters OR Add these filters CYAN Red Blue + Green MAGENTA Green Red + Blue YELLOW Blue Red + Green RED Blue + Green Red GREEN Red + Blue Green BLUE Red + Green Blue LATENT-IMAGE KEEPING These papers feature improvements in the stability of the latent image. Under normal conditions, you should not notice shifts in the latent image with keeping times from 5 seconds to 24 hours. Therefore, you do not need to change your printing procedures to compensate for latent-image shifts under normal temperature and handling conditions. PROCESSING Use EKTACOLOR RA Chemicals for Process RA-4, and use Pro Strips Color Negative Paper Control Strips / for Process RA-4. (See "Process Control.") Note: Although Kodak does not recommend Process RA-2SM for professional media, some customers may judge the results acceptable for certain applications. Customers should test the media to determine acceptability, as this process may provide warmer results than desired. When fully converted to these new papers, your developer replenishment rate should be approximately 10% lower than with PORTRA III and SUPRA III Papers. Review your process control charts and make adjustments as needed to stay in control. Bleach-fix replenishment rates will stay the same for Process RA-4. When using EKTACOLOR PRIME Bleach-Fix Replenisher, replenishment rates will need to increase. For detailed information on replenishment rates and processing this paper in continuous or roller-transport processors, see Publication No. Z-130, Using EKTACOLOR RA Chemicals. For information on processing this paper in trays or rotary-tube and drum processors, see Publication No. J-39, Tray, Drum, and Rotary-Tube Processing with EKTACOLOR RA Chemicals. Both publications are available through our website at www.kodak.com/go/photochemicals. Do not use drying temperatures above 93 C (200 F) to avoid damage to prints. Underdrying can produce tackiness that tends to make paper stick when it is wound into rolls before cutting. Overdrying can cause curl and complicate transport in print finishing. Do not ferrotype this paper its surface dries to a natural gloss without ferrotyping. ILLUMINATION FOR EVALUATION OF PRINTS Evaluation of prints for color and density requires higher illumination levels than those used in normal display conditions. A good average conditionfor evaluation is a light source with a color temperature of 5000 K ± 1000, a Color Rendering Index of 85 to 100, and an illuminance of at least 50 footcandles (538 lux). Fluorescent lamps such as cool white deluxe (made by several manufacturers) meet these conditions. You can also use a mixture of incandescent and fluorescent lamps. For each pair of 40-watt cool white deluxe fluorescent lamps, use a 75-watt frosted, tungsten bulb. Viewing conditions should meet ANSI Standard PH2.30-1989. 4 PORTRA ENDURA Paper and SUPRA ENDURA Paper E-4021
RETOUCHING If possible, do any required retouching on color negatives before you make prints especially if you plan to make more than one print from each negative. For information on retouching negatives, see Publication No. E-71, Retouching Color Negatives. If the negative image is small, you can make corrections much more easily by applying dry or liquid dyes to small or large areas of the enlarged print. Although you ll probably do most retouching with dyes, you may sometimes want to use black lead, colored pencils, or opaque. Because color prints have separate dye layers, you can t use an etching knife to reduce density as you can with black-and-white materials. For information on retouching prints, see Publication No. E-70, Retouching Prints on EKTACOLOR and EKTACHROME Papers. POST-PROCESS TREATMENTS Mounting Prints You can mount prints with dry mounting tissue. The temperature across the heating platen should be 82 to 93 C (180 to 200 F). Preheat the cover sheet that you use over the face of the print to remove moisture. Apply pressure for 30 seconds, or up to 3 minutes in the case of a thick mount. Caution Temperatures above 93 C (200 F) for long periods of time may cause physical and color changes in prints. Excessive moisture may also cause color shifts. Mounting at the lowest temperature at the shortest time will reduce these changes. Note: PROESSIONAL PORTRA ENDURA Paper and PROESSIONAL SUPRA ENDURA Paper may shift towards a pink balance when heated to excessive temperatures, but will return to normal when fully cooled to room temperature. You can also use a contact-type adhesive or cement for cold-mounting. For information on lacquering and other post-process treatments, see Publication No. E-176, Post-Processing Treatment of Color Prints Effects on Image Stability, available through our website at www.kodak.com/go/professional. STORAGE AND DISPLAY OF PRINTS PORTRA ENDURA Paper and SUPRA ENDURA Paper have been formulated to provide improved dye stability and print longevity for prints displayed under typical home lighting conditions (i.e., 120 lux for 12 hours a day), and typical home dark storage conditions (i.e., 20 to 23 C [68 to 73.4 F] and 50% relative humidity). Photographic dyes, like all dyes, can change with time and exposure to sunlight, ultraviolet radiation, excessive heat, and high humidity. To help prevent changes in photographic dyes, follow these guidelines: Illuminate prints with tungsten light whenever possible. Display prints in the lowest light level consistent with your viewing needs. If a print is exposed to direct or indirect sunlight or fluorescent light, use an ultraviolet-absorbing filter (such as glass) between the light source and the print. If prints are displayed behind glass, maintain a slight separation between the print and the glass. Keep the temperature and humidity as low as possible. Use album materials described in Publication No. E-30, Storage and Care of Photographic Materials Before and After Processing. PROCESS CONTROL To produce high-quality color prints consistently and with a minimum of waste, you need to match your process to a standard for density, color, and contrast each time you process paper. In addition to monitoring process parameters such as solution times, temperature, replenishment rates, solution concentrations, etc., you should regularly run control strips to ensure best results. Pro Strips Color Negative Paper Control Strips / for Process RA-4 (CAT 129 8587) are designed specifically for use with Papers and Print and Display Materials in professional labs. These control strips are designed to detect process conditions that can degrade the quality of your finished prints. They are better able to track the papers that are processed in professional finishing laboratories. For more information, see Publication No. Z-130, Using EKTACOLOR RA Chemicals, section 7a. PORTRA ENDURA Paper and SUPRA ENDURA Paper E-4021 5
SCANNER TOOLS The Q-60 Color Input Targets are available on EKTACHROME Professional Film in both 35 mm and 4 x 5 inch formats and on EKTACOLOR Paper. Developed primarily for use by prepress houses in the printing industry, this target can also be used by professional photographers, desktop publishers, and in the emerging hybrid imaging area. The target is designed for use in the commercial and desktop arenas as a comparative control tool to help customers calibrate their input product to the final output. This target maps the gamut of color space that EKTACHROME Film and EKTACOLOR Paper can reproduce. When used properly, customers will be able to compare their output whether it is separations for the printed page and four-color printing or second generation originals from a film recorder to the original. This will help customers optimize the capabilities of their system for color reproduction of an extreme range of color gamut Scanner color characterization targets produced in accordance with ANSI IT8.7/1 (transmission) and IT8.7/2 (reflection) Standards (or ISO 12641) are available from Kodak. The Q-60 Color Input Target Q-60R2 is manufactured on ENDURA Paper, and is likewise identified by a watermark with a single grey dot under PAPER. This target can be used with both the newer ENDURA Papers and older papers. The older Q-60R1 target, which has the same two-dot watermark as the older papers, can be used with the newer papers. PRINTER CONTROL TOOLS The following tools are manufactured by Kodak for optimization of printer balance and slope controls of PORTRA Films printed on Paper. Product Features / Description CAT No. Control Negative Set / Size 135 Control Negative Normal / Size 120 Control Negative Very Under / Size 120 Control Negative Under / Size 120 Control Negative Over / Size 120 Control Negative Very Over / Size 120 This set includes one each: very under, under, normal, over, and very over negatives on a single strip of 35 mm film 179 8511 Size 120 Film 846 0958 Size 120 Film 107 1398 Size 120 Film 841 1902 Size 120 Film 177 1302 Size 120 Film 144 5741 6 PORTRA ENDURA Paper and SUPRA ENDURA Paper E-4021
The following tools are manufactured by Kodak for optimization of printer balance and slope controls of PORTRA 400BW Film printed on Paper. Product Features / Description CAT No. PORTRA 400BW Printer Control Negative Set / Size 135 PORTRA 400BW Printer Control Negative Set / Size 120 Five Negative Set This set includes one each: very under, under, normal, over, and very over negatives on a single strip of 35 mm film This set includes one each: very under, under, normal, over, and very over negatives on a single strip of size 120 film 156 8286 114 4419 The following tool is manufactured by Kodak for optimization of printer balance and slope controls of T400 CN Film printed on Paper. Product Features / Description CAT No. T-MAX T400 CN Printer Balancing Kit / Size 135, Size 120 This set includes size 135 and size 120 negatives for printer balance and slope control 865 3552 SIZES AVAILABLE PORTRA ENDURA Paper and SUPRA ENDURA Paper are available in a variety of roll and sheet sizes. Sizes and catalog numbers may differ from country to country. See your dealer who supplies Products. Other roll and sheet sizes, including PORTRA ENDURA Paper in a Y surface, are available on a special-order basis; contact your Sales Representative. CURVES Characteristic Curves: PORTRA ENDURA Paper DENSITY 3.0 Exposure: 0.5 second Process: RA-4, 95F (35C), 45 sec Densitometry: Status A R 3.0 F002_1274AC LOG EXPOSURE (lux-seconds) DENSITY Characteristic Curves: SUPRA ENDURA Paper 3.0 Exposure: 0.5 second Process: RA-4, 95F (35C), 45 sec Densitometry: Status A R G B B G 3.0 F002_1275AC LOG EXPOSURE (lux-seconds) NOTICE: The sensitometric curves and data in this publication represent product tested under the conditions of exposure and processing specified. They are representative of production coatings, and therefore do not apply directly to a particular box or roll of photographic material. They do not represent standards or specifications that must be met by Eastman Kodak Company. The company reserves the right to change and improve PORTRA ENDURA Paper and SUPRA ENDURA Paper E-4021 7
PORTRA ENDURA Paper and SUPRA ENDURA Paper DIFFUSE SPECTRAL DENSITY 2.5 0.5 Spectral-Dye-Density Curves Process: RA-4 Yellow Magenta Spectral-Sensitivity Curves Cyan 400 450 500 550 600 650 E4021D WAVELENGTH (nm) 700 MORE INFORMATION Kodak has many publications to assist you with information on Kodak products, equipment, and materials. Additional information is available on the Kodak website and through the U.S.A./Canada faxback system. The following publications are available from dealers who sell Kodak products, or you can contact Kodak in your country from more information. E-30 Storage and Care of Photographic Materials Before and After Processing E-70 Retouching Prints on EKTACOLOR and EKTACHROME Papers E-190 PORTRA Films E-71 Retouching Color Negatives E-176 Post-Processing Treatment of Color Prints Effects on Image Stability J-39 Tray, Drum, and Rotary-Tube Processing with EKTACOLOR RA Chemicals K-4 How Safe is Your Safelight? Z-130 Using EKTACOLOR RA Chemicals * LOG SENSITIVITY - Effective Exposure: 0.5 sec Process: RA-4-250 300 350 400 450 500 F002_1198AC Yellow- Forming Layer 550 Magenta- Forming Layer 600 Cyan- Forming Layer 650 WAVELENGTH (nm) 2 *Sensitivity = reciprocal of exposure (erg/cm ) required to produce specified density 700 750 For the latest version of technical support publications for Products, visit Kodak on-line at: http://www.kodak.com/go/professional If you have questions about Products, call Kodak. In the U.S.A.: 1-800-242-2424, Ext. 19, Monday Friday 9 a.m. 7 p.m. (Eastern time) In Canada: 1-800-465-6325, Monday Friday 8 a.m. 5 p.m. (Eastern time) Note: The Kodak materials described in this publication for use with PORTRA and SUPRA ENDURA Papers are available from dealers who supply Products. You can use other materials, but you may not obtain similar results. Kodak, Kodak Professional, Ektachrome, Ektacolor, Endura, Portra, Supra, and Wratten are trademarks. Revised 9-08 Printed in U.S.A. PORTRA ENDURA Paper and SUPRA ENDURA Paper Publication No. E-4021 Consumer Digital Imaging Group EASTMAN COMPANY ROCHESTER, NY 14650